I would recommend the 730 pictures Geneva affective picture database (GAPED). It has been validated worldwide, and the cultural bias is more limited than other image resources. There are general positive/neutral/negative images, with valence and activations scores.
What does the IAPS measure?
The International Affective Picture System (IAPS) provides normative ratings of emotion (pleasure, arousal, dominance) for a set of color photographs that provide a set of normative emotional stimuli for experimental investigations of emotion and attention.
How many images in IAPS?
The database “comprises a total of 378 standardized color photographs with different semantic content (diverse social situations, animals and plants) as well as different emotional intensity and valence”.
What is IAPS psychology?
The International Affective Picture System (IAPS) is a database of pictures designed to provide a standardized set of pictures for studying emotion and attention that has been widely used in psychological research.
What are normative ratings?
any evaluative instrument on which the respondent provides ratings for a series of items or chooses scores to indicate his or her agreement with a series of statements. Unlike an ipsative scale, there is no requirement for these scores to sum to a particular total (e.g., 100%).
Why is normative data useful?
Especially important in studies which seek normative data are precise characterization of the study population, clear definition and measurement of phenomena, and appropriate interpretation and generalization of results.
What is the difference between ipsative and normative?
Unlike normative assessments which measure clearly identifiable traits, ipsative assessments indicate only orientations and the relative type of person being assessed. What it does not reveal or predict is how two people with similar patterns or types will actually perform in a job.
What normed data?
Normative data (norms) are information from a population of interest that establishes a baseline distribution of results for that particular population. Norms are usually derived from a large sample that is representative of the population of interest.
How is a test normed for a population?
To construct the norms, test developers must define and identify the specific testing population (e.g., students applying to postsecondary institutions) and decide the statistics to be calculated. These decisions will impact the test developers in drawing a sample from the target population.
Where can I find normative data?
Normative data is typically obtained from a large, randomly selected representative sample from the wider population. They can be used to easily transform individual scores or measurements directly into standardized z-scores, T scores, or quantiles.
How do you collect normative data?
How to Obtain Normative Data. Normative data are collected by administering a test or questionnaire to the normative sample. Cross-sectional studies, especially population surveys, are the most common study design to obtain norms and to picture a certain situation at one point of time.
What is normative data GCSE PE?
Normative data is data from a population that gives a range of measurements in an area that can be used for a comparison. This data is taken from a randomly selected general population.
What is Ipsative data?
Abstract. Data are said to be ipsative when the sum of the measures obtained over the variables is a constant for each individual. In this article, three types of ipsative data that are commonly encountered in social research are discussed. Each of them can be used to control the effect of different response set biases …
How does test retest reliability work?
Test-retest reliability measures the consistency of results when you repeat the same test on the same sample at a different point in time. You use it when you are measuring something that you expect to stay constant in your sample.
What is a good reliability score?
0.9 and greater: excellent reliability. Between 0.9 and 0.8: good reliability. Between 0.8 and 0.7: acceptable reliability.
How can test-retest reliability be improved?
Here are six practical tips to help increase the reliability of your assessment:
- Use enough questions to assess competence. …
- Have a consistent environment for participants. …
- Ensure participants are familiar with the assessment user interface. …
- If using human raters, train them well. …
- Measure reliability.
How can a test be reliable and not valid?
A measure can be reliable but not valid, if it is measuring something very consistently but is consistently measuring the wrong construct. Likewise, a measure can be valid but not reliable if it is measuring the right construct, but not doing so in a consistent manner.
Can there be validity without reliability?
Although a test can be reliable without being valid, it cannot be valid without being reliable. If a test is inconsistent in its measurements, we cannot say it is measuring what it is intended to measure and, therefore, it is considered invalid.
How could you ensure valid and reliable primary data?
How to ensure validity and reliability in your research. The reliability and validity of your results depends on creating a strong research design, choosing appropriate methods and samples, and conducting the research carefully and consistently.
What is alternate reliability?
Alternate-form reliability is the consistency of test results between two different – but equivalent – forms of a test. Alternate-form reliability is used when it is necessary to have two forms of the same tests.
What is an example of alternate forms reliability?
Alternate form reliability occurs when an individual participating in a research or testing scenario is given two different versions of the same test at different times. The scores are then compared to see if it is a reliable form of testing.
What is Kuder Richardson method?
In psychometrics, the Kuder–Richardson formulas, first published in 1937, are a measure of internal consistency reliability for measures with dichotomous choices. They were developed by Kuder and Richardson.